WANTED: standalone non-blocking 48port + 2*1Gb uplink switch

Judd Tracy jtracy at ist.ucf.edu
Tue Jan 23 14:58:21 EST 2001


On Tue, 23 Jan 2001, Mike Mettke wrote:

> >
> 
> Fellow beowulfers,
> 
> I am looking for suitable switch candidates for a switch to put in our
> soon-to-be beowulf. Money is a consideration, but secondary to solid
> performance.
> I went over the list archives, and although there has been some discussion on
> this subject in the past, the focus was on 24 port switches, usually w/o 1Gb
> uplinks.
> The beowulf might see some mixed use (standalone programs, say large matlab
> stuff), and therefore trying not to make too many compromises is essential.
> 
> Requirements:
> - 48 100Mbit/s ethernet ports
> - 2 1000Base-SX ports (for the uplink, we need those!)
> - all ports full duplex
> - max latency 20 microseconds (10 is better, of course)
> - non-blocking switch fabric --> 2 * (48*100 + 2*1000) = 13.6Gbps or better
> - 19' rack-mountable
> - 1 or 2 RU high (ok, it would be _nice_)
> - standalone is sufficient, stackable (suggestons?) would be nice
> - port aggregation would be nice
> 
> 
> I am currently shying away from stackable switches since they're usually much
> more expensive and the internal bandwidth doesn't scale that well. The idea is
> to buy a couple of those switches and then hook them up to a non-blocking
> GigaBit switch via the up-links. Candidates:
> 
> Intel 420T
> 
> That seems to be the only one ....8-(. Intel has a shipping date March 2001 on
> their web site, and I was wondering whether anybody has had experiences using
> this switch or similar switches (suggestions wanted).
> 
> 
> hope to hear from you
> Mike Mettke

Try looking at the:
Cisco Catalyst 2948G Switch
  - 48 10/100
  - 2 1000BaseX (GBIC)
  - non-blocking 24 Gbps

Judd Tracy
Institute for Simulation and Training
jtracy at ist.ucf.edu


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